src/game_session.cpp

   1 //  $Id$
   2 //
   3 //  SuperTux
   4 //  Copyright (C) 2000 Bill Kendrick <bill@newbreedsoftware.com>
   5 //  Copyright (C) 2004 Tobias Glaesser <tobi.web@gmx.de>
   6 //  Copyright (C) 2004 Ingo Ruhnke <grumbel@gmx.de>
   7 //
   8 //  This program is free software; you can redistribute it and/or
   9 //  modify it under the terms of the GNU General Public License
  10 //  as published by the Free Software Foundation; either version 2
  11 //  of the License, or (at your option) any later version.
  12 //
  13 //  This program is distributed in the hope that it will be useful,
  14 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 //  GNU General Public License for more details.
  17 //
  18 //  You should have received a copy of the GNU General Public License
  19 //  along with this program; if not, write to the Free Software
  20 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 #include <config.h>
  22
  23 #include <fstream>
  24 #include <sstream>
  25 #include <cassert>
  26 #include <cstdio>
  27 #include <cstdlib>
  28 #include <cmath>
  29 #include <cstring>
  30 #include <cerrno>
  31 #include <unistd.h>
  32 #include <ctime>
  33 #include <stdexcept>
  34
  35 #include <SDL.h>
  36
  37 #include "game_session.hpp"
  38 #include "msg.hpp"
  39 #include "worldmap.hpp"
  40 #include "mainloop.hpp"
  41 #include "video/screen.hpp"
  42 #include "audio/sound_manager.hpp"
  43 #include "gui/menu.hpp"
  44 #include "sector.hpp"
  45 #include "level.hpp"
  46 #include "tile.hpp"
  47 #include "player_status.hpp"
  48 #include "object/particlesystem.hpp"
  49 #include "object/background.hpp"
  50 #include "object/gradient.hpp"
  51 #include "object/tilemap.hpp"
  52 #include "object/camera.hpp"
  53 #include "object/player.hpp"
  54 #include "object/level_time.hpp"
  55 #include "lisp/lisp.hpp"
  56 #include "lisp/parser.hpp"
  57 #include "resources.hpp"
  58 #include "worldmap.hpp"
  59 #include "misc.hpp"
  60 #include "statistics.hpp"
  61 #include "timer.hpp"
  62 #include "object/fireworks.hpp"
  63 #include "textscroller.hpp"
  64 #include "control/codecontroller.hpp"
  65 #include "control/joystickkeyboardcontroller.hpp"
  66 #include "main.hpp"
  67 #include "file_system.hpp"
  68 #include "gameconfig.hpp"
  69 #include "gettext.hpp"
  70 #include "exceptions.hpp"
  71 #include "flip_level_transformer.hpp"
  72
  73 // the engine will be run with a logical framerate of 64fps.
  74 // We chose 64fps here because it is a power of 2, so 1/64 gives an "even"
  75 // binary fraction...
  76 static const float LOGICAL_FPS = 64.0;
  77
  78 using namespace WorldMapNS;
  79
  80 GameSession* GameSession::current_ = 0;
  81
  82 GameSession::GameSession(const std::string& levelfile_, GameSessionMode mode,
  83     Statistics* statistics)
  84   : level(0), currentsector(0), mode(mode),
  85     end_sequence(NO_ENDSEQUENCE), end_sequence_controller(0),
  86     levelfile(levelfile_), best_level_statistics(statistics),
  87     capture_demo_stream(0), playback_demo_stream(0), demo_controller(0)
  88 {
  89   current_ = this;
  90   currentsector = 0;
  91
  92   game_pause = false;
  93   fps_fps = 0;
  94
  95   Console::registerCommandReceiver(this);
  96
  97   restart_level(true);
  98 }
  99
 100 void
 101 GameSession::restart_level(bool fromBeginning)
 102 {
 103   game_pause   = false;
 104   end_sequence = NO_ENDSEQUENCE;
 105
 106   main_controller->reset();
 107
 108   delete level;
 109   currentsector = 0;
 110
 111   level = new Level;
 112   level->load(levelfile);
 113
 114   global_stats.reset();
 115   global_stats.set_total_points(COINS_COLLECTED_STAT, level->get_total_coins());
 116   global_stats.set_total_points(BADGUYS_KILLED_STAT, level->get_total_badguys());
 117
 118   // get time
 119   int time = 0;
 120   for(std::vector<Sector*>::iterator i = level->sectors.begin(); i != level->sectors.end(); ++i)
 121   {
 122     Sector* sec = *i;
 123
 124     for(std::vector<GameObject*>::iterator j = sec->gameobjects.begin();
 125         j != sec->gameobjects.end(); ++j)
 126     {
 127       GameObject* obj = *j;
 128
 129       LevelTime* lt = dynamic_cast<LevelTime*> (obj);
 130       if(lt)
 131         time += int(lt->get_level_time());
 132     }
 133   }
 134   global_stats.set_total_points(TIME_NEEDED_STAT, (time == 0) ? -1 : time);
 135
 136   if (fromBeginning) reset_sector="";
 137   if(reset_sector != "") {
 138     currentsector = level->get_sector(reset_sector);
 139     if(!currentsector) {
 140       std::stringstream msg;
 141       msg << "Couldn't find sector '" << reset_sector << "' for resetting tux.";
 142       throw std::runtime_error(msg.str());
 143     }
 144     currentsector->activate(reset_pos);
 145   } else {
 146     currentsector = level->get_sector("main");
 147     if(!currentsector)
 148       throw std::runtime_error("Couldn't find main sector");
 149     currentsector->activate("main");
 150   }
 151
 152   if(mode == ST_GL_PLAY || mode == ST_GL_LOAD_LEVEL_FILE)
 153     levelintro();
 154
 155   currentsector->play_music(LEVEL_MUSIC);
 156
 157   if(capture_file != "")
 158     record_demo(capture_file);
 159 }
 160
 161 GameSession::~GameSession()
 162 {
 163   delete capture_demo_stream;
 164   delete playback_demo_stream;
 165   delete demo_controller;
 166
 167   delete end_sequence_controller;
 168   delete level;
 169   Console::unregisterCommandReceiver(this);
 170
 171   current_ = NULL;
 172 }
 173
 174 void
 175 GameSession::record_demo(const std::string& filename)
 176 {
 177   delete capture_demo_stream;
 178
 179   capture_demo_stream = new std::ofstream(filename.c_str());
 180   if(!capture_demo_stream->good()) {
 181     std::stringstream msg;
 182     msg << "Couldn't open demo file '" << filename << "' for writing.";
 183     throw std::runtime_error(msg.str());
 184   }
 185   capture_file = filename;
 186 }
 187
 188 void
 189 GameSession::play_demo(const std::string& filename)
 190 {
 191   delete playback_demo_stream;
 192   delete demo_controller;
 193
 194   playback_demo_stream = new std::ifstream(filename.c_str());
 195   if(!playback_demo_stream->good()) {
 196     std::stringstream msg;
 197     msg << "Couldn't open demo file '" << filename << "' for reading.";
 198     throw std::runtime_error(msg.str());
 199   }
 200
 201   Player& tux = *currentsector->player;
 202   demo_controller = new CodeController();
 203   tux.set_controller(demo_controller);
 204 }
 205
 206 void
 207 GameSession::levelintro()
 208 {
 209   char str[60];
 210
 211   sound_manager->stop_music();
 212
 213   DrawingContext context;
 214   for(Sector::GameObjects::iterator i = currentsector->gameobjects.begin();
 215       i != currentsector->gameobjects.end(); ++i) {
 216     Background* background = dynamic_cast<Background*> (*i);
 217     if(background) {
 218       background->draw(context);
 219     }
 220     Gradient* gradient = dynamic_cast<Gradient*> (*i);
 221     if(gradient) {
 222       gradient->draw(context);
 223     }
 224   }
 225
 226 //  context.draw_text(gold_text, level->get_name(), Vector(SCREEN_WIDTH/2, 160),
 227 //      CENTER_ALLIGN, LAYER_FOREGROUND1);
 228   context.draw_center_text(gold_text, level->get_name(), Vector(0, 160),
 229       LAYER_FOREGROUND1);
 230
 231   sprintf(str, "Coins: %d", player_status->coins);
 232   context.draw_text(white_text, str, Vector(SCREEN_WIDTH/2, 210),
 233       CENTER_ALLIGN, LAYER_FOREGROUND1);
 234
 235   if((level->get_author().size()) && (level->get_author() != "SuperTux Team"))
 236     //TODO make author check case/blank-insensitive
 237     context.draw_text(white_small_text,
 238       std::string(_("contributed by ")) + level->get_author(),
 239       Vector(SCREEN_WIDTH/2, 350), CENTER_ALLIGN, LAYER_FOREGROUND1);
 240
 241
 242   if(best_level_statistics != NULL)
 243     best_level_statistics->draw_message_info(context, _("Best Level Statistics"));
 244
 245   wait_for_event(1.0, 3.0);
 246 }
 247
 248 void
 249 GameSession::on_escape_press()
 250 {
 251   if(currentsector->player->is_dying() || end_sequence != NO_ENDSEQUENCE)
 252     return;   // don't let the player open the menu, when he is dying
 253
 254   if(mode == ST_GL_TEST) {
 255     main_loop->exit_screen();
 256   } else if (!Menu::current()) {
 257     Menu::set_current(game_menu);
 258     game_menu->set_active_item(MNID_CONTINUE);
 259     game_pause = true;
 260   } else {
 261     game_pause = false;
 262   }
 263 }
 264
 265 void
 266 GameSession::process_events()
 267 {
 268   Player& tux = *currentsector->player;
 269
 270   // end of pause mode?
 271   if(!Menu::current() && game_pause) {
 272     game_pause = false;
 273   }
 274
 275   if (end_sequence != NO_ENDSEQUENCE) {
 276     if(end_sequence_controller == 0) {
 277       end_sequence_controller = new CodeController();
 278       tux.set_controller(end_sequence_controller);
 279     }
 280
 281     end_sequence_controller->press(Controller::RIGHT);
 282
 283     if (int(last_x_pos) == int(tux.get_pos().x))
 284       end_sequence_controller->press(Controller::JUMP);
 285     last_x_pos = tux.get_pos().x;
 286   }
 287
 288   // playback a demo?
 289   if(playback_demo_stream != 0) {
 290     demo_controller->update();
 291     char left = false;
 292     char right = false;
 293     char up = false;
 294     char down = false;
 295     char jump = false;
 296     char action = false;
 297     playback_demo_stream->get(left);
 298     playback_demo_stream->get(right);
 299     playback_demo_stream->get(up);
 300     playback_demo_stream->get(down);
 301     playback_demo_stream->get(jump);
 302     playback_demo_stream->get(action);
 303     demo_controller->press(Controller::LEFT, left);
 304     demo_controller->press(Controller::RIGHT, right);
 305     demo_controller->press(Controller::UP, up);
 306     demo_controller->press(Controller::DOWN, down);
 307     demo_controller->press(Controller::JUMP, jump);
 308     demo_controller->press(Controller::ACTION, action);
 309   }
 310
 311   // save input for demo?
 312   if(capture_demo_stream != 0) {
 313     capture_demo_stream ->put(main_controller->hold(Controller::LEFT));
 314     capture_demo_stream ->put(main_controller->hold(Controller::RIGHT));
 315     capture_demo_stream ->put(main_controller->hold(Controller::UP));
 316     capture_demo_stream ->put(main_controller->hold(Controller::DOWN));
 317     capture_demo_stream ->put(main_controller->hold(Controller::JUMP));
 318     capture_demo_stream ->put(main_controller->hold(Controller::ACTION));
 319   }
 320 }
 321
 322 bool
 323 GameSession::consoleCommand(std::string command)
 324 {
 325   if (command == "foo") {
 326     msg_info("bar");
 327     return true;
 328   }
 329
 330   //TODO: Build command list automatically
 331   if (command == "cmdlist") {
 332     msg_info("foo, cmdlist, cheats, whereami, camera");
 333     return true;
 334   }
 335   //TODO: remove (or at least hide) this before release
 336   if (command == "cheats") {
 337     msg_info("grow, fire, ice, lifeup, numberofthebeast, lifedown, grease, invincible, mortal, shrink, kill, gotoend, flip, finish");
 338     return true;
 339   }
 340
 341   if (currentsector == 0) return false;
 342   Player& tux = *currentsector->player;
 343
 344   // Cheating words (the goal of this is really for debugging,
 345   // but could be used for some cheating, nothing wrong with that)
 346   if (command == "grow") {
 347     tux.set_bonus(GROWUP_BONUS, false);
 348     return true;
 349   }
 350   if (command == "fire") {
 351     tux.set_bonus(FIRE_BONUS, false);
 352     return true;
 353   }
 354   if (command == "ice") {
 355     tux.set_bonus(ICE_BONUS, false);
 356     return true;
 357   }
 358   if (command == "lifeup") {
 359     player_status->incLives();
 360     return true;
 361   }
 362   if (command == "numberofthebeast") {
 363     player_status->coins += 55;
 364     return true;
 365   }
 366   if (command == "lifedown") {
 367     player_status->coins = std::max(player_status->coins-25, 0);
 368     return true;
 369   }
 370   if (command == "grease") {
 371     tux.physic.set_velocity_x(tux.physic.get_velocity_x()*3);
 372     return true;
 373   }
 374   if (command == "invincible") {
 375     // be invincle for the rest of the level
 376     tux.invincible_timer.start(10000);
 377     return true;
 378   }
 379   if (command == "mortal") {
 380     // give up invincibility
 381     tux.invincible_timer.stop();
 382     return true;
 383   }
 384   if (command == "shrink") {
 385     // remove powerups
 386     tux.kill(tux.SHRINK);
 387     return true;
 388   }
 389   if (command == "kill") {
 390     tux.kill(tux.KILL);
 391     return true;
 392   }
 393   if (command == "whereami") {
 394     msg_info("You are at x " << tux.get_pos().x << ", y " << tux.get_pos().y);
 395     return true;
 396   }
 397   if (command == "gotoend") {
 398     // goes to the end of the level
 399     tux.move(Vector(
 400           (currentsector->solids->get_width()*32) - (SCREEN_WIDTH*2), 0));
 401     currentsector->camera->reset(
 402         Vector(tux.get_pos().x, tux.get_pos().y));
 403     return true;
 404   }
 405   if (command == "flip") {
 406     FlipLevelTransformer flip_transformer;
 407     flip_transformer.transform(GameSession::current()->get_current_level());
 408     return true;
 409   }
 410   if (command == "finish") {
 411     finish(true);
 412     return true;
 413   }
 414   if (command == "camera") {
 415     msg_info("Camera is at "
 416               << Sector::current()->camera->get_translation().x << ","
 417               << Sector::current()->camera->get_translation().y);
 418     return true;
 419   }
 420
 421   return false;
 422 }
 423
 424 void
 425 GameSession::check_end_conditions()
 426 {
 427   Player* tux = currentsector->player;
 428
 429   /* End of level? */
 430   if(end_sequence && endsequence_timer.check()) {
 431     finish(true);
 432
 433     // add time spent to statistics
 434     int tottime = 0, remtime = 0;
 435     for(std::vector<Sector*>::iterator i = level->sectors.begin(); i != level->sectors.end(); ++i)
 436     {
 437       Sector* sec = *i;
 438
 439       for(std::vector<GameObject*>::iterator j = sec->gameobjects.begin();
 440           j != sec->gameobjects.end(); ++j)
 441       {
 442         GameObject* obj = *j;
 443
 444         LevelTime* lt = dynamic_cast<LevelTime*> (obj);
 445         if(lt)
 446         {
 447           tottime += int(lt->get_level_time());
 448           remtime += int(lt->get_remaining_time());
 449         }
 450       }
 451     }
 452     global_stats.set_points(TIME_NEEDED_STAT, (tottime == 0 ? -1 : (tottime-remtime)));
 453
 454     return;
 455   } else if (!end_sequence && tux->is_dead()) {
 456     if (player_status->coins < 0) {
 457       // No more coins: restart level from beginning
 458       player_status->coins = 0;
 459       restart_level(true);
 460     } else {
 461       // Still has coins: restart level from last reset point
 462       restart_level(false);
 463     }
 464
 465     return;
 466   }
 467 }
 468
 469 void
 470 GameSession::draw(DrawingContext& context)
 471 {
 472   currentsector->draw(context);
 473   drawstatus(context);
 474
 475   if(game_pause)
 476     draw_pause(context);
 477 }
 478
 479 void
 480 GameSession::draw_pause(DrawingContext& context)
 481 {
 482   context.draw_filled_rect(
 483       Vector(0,0), Vector(SCREEN_WIDTH, SCREEN_HEIGHT),
 484       Color(.2, .2, .2, .5), LAYER_FOREGROUND1);
 485 }
 486
 487 void
 488 GameSession::process_menu()
 489 {
 490   Menu* menu = Menu::current();
 491   if(menu) {
 492     menu->update();
 493
 494     if(menu == game_menu) {
 495       switch (game_menu->check()) {
 496         case MNID_CONTINUE:
 497           Menu::set_current(0);
 498           break;
 499         case MNID_ABORTLEVEL:
 500           Menu::set_current(0);
 501           main_loop->exit_screen();
 502           break;
 503       }
 504     } else if(menu == options_menu) {
 505       process_options_menu();
 506     }
 507   }
 508 }
 509
 510 void
 511 GameSession::setup()
 512 {
 513   Menu::set_current(NULL);
 514   current_ = this;
 515
 516   // Eat unneeded events
 517   SDL_Event event;
 518   while(SDL_PollEvent(&event))
 519   {}
 520 }
 521
 522 void
 523 GameSession::update(float elapsed_time)
 524 {
 525   process_events();
 526   process_menu();
 527
 528   check_end_conditions();
 529
 530   // handle controller
 531   if(main_controller->pressed(Controller::PAUSE_MENU))
 532     on_escape_press();
 533
 534   // respawning in new sector?
 535   if(newsector != "" && newspawnpoint != "") {
 536     Sector* sector = level->get_sector(newsector);
 537     if(sector == 0) {
 538       msg_warning("Sector '" << newsector << "' not found");
 539     }
 540     sector->activate(newspawnpoint);
 541     sector->play_music(LEVEL_MUSIC);
 542     currentsector = sector;
 543     newsector = "";
 544     newspawnpoint = "";
 545   }
 546
 547   // Update the world state and all objects in the world
 548   if(!game_pause) {
 549     // Update the world
 550     if (end_sequence == ENDSEQUENCE_RUNNING) {
 551       currentsector->update(elapsed_time/2);
 552     } else if(end_sequence == NO_ENDSEQUENCE) {
 553       if(!currentsector->player->growing_timer.started())
 554         currentsector->update(elapsed_time);
 555     }
 556   }
 557
 558   // update sounds
 559   sound_manager->set_listener_position(currentsector->player->get_pos());
 560
 561   /* Handle music: */
 562   if (currentsector->player->invincible_timer.started() &&
 563       currentsector->player->invincible_timer.get_timeleft()
 564       > TUX_INVINCIBLE_TIME_WARNING && !end_sequence) {
 565     currentsector->play_music(HERRING_MUSIC);
 566   } else if(currentsector->get_music_type() != LEVEL_MUSIC && !end_sequence) {
 567     currentsector->play_music(LEVEL_MUSIC);
 568   }
 569 }
 570
 571 #if 0
 572 GameSession::ExitStatus
 573 GameSession::run()
 574 {
 575   Menu::set_current(0);
 576   current_ = this;
 577
 578   int fps_cnt = 0;
 579
 580   // Eat unneeded events
 581   SDL_Event event;
 582   while(SDL_PollEvent(&event))
 583   {}
 584
 585   draw();
 586
 587   Uint32 fps_ticks = SDL_GetTicks();
 588   Uint32 fps_nextframe_ticks = SDL_GetTicks();
 589   Uint32 ticks;
 590   bool skipdraw = false;
 591
 592   while (exit_status == ES_NONE) {
 593     // we run in a logical framerate so elapsed time is a constant
 594     // This will make the game run determistic and not different on different
 595     // machines
 596     static const float elapsed_time = 1.0 / LOGICAL_FPS;
 597     // old code... float elapsed_time = float(ticks - lastticks) / 1000.;
 598     if(!game_pause)
 599       game_time += elapsed_time;
 600
 601     // regulate fps
 602     ticks = SDL_GetTicks();
 603     if(ticks > fps_nextframe_ticks) {
 604       if(skipdraw == true) {
 605         // already skipped last frame? we have to slow down the game then...
 606         skipdraw = false;
 607         fps_nextframe_ticks -= (Uint32) (1000.0 / LOGICAL_FPS);
 608       } else {
 609         // don't draw all frames when we're getting too slow
 610         skipdraw = true;
 611       }
 612     } else {
 613       skipdraw = false;
 614       while(fps_nextframe_ticks > ticks) {
 615         /* just wait */
 616         // If we really have to wait long, then do an imprecise SDL_Delay()
 617         Uint32 diff = fps_nextframe_ticks - ticks;
 618         if(diff > 15) {
 619           SDL_Delay(diff - 10);
 620         }
 621         ticks = SDL_GetTicks();
 622       }
 623     }
 624     fps_nextframe_ticks = ticks + (Uint32) (1000.0 / LOGICAL_FPS);
 625
 626     process_events();
 627     process_menu();
 628
 629     // Update the world state and all objects in the world
 630     if(!game_pause)
 631     {
 632       // Update the world
 633       check_end_conditions();
 634       if (end_sequence == ENDSEQUENCE_RUNNING)
 635         update(elapsed_time/2);
 636       else if(end_sequence == NO_ENDSEQUENCE)
 637         update(elapsed_time);
 638     }
 639
 640     if(!skipdraw)
 641       draw();
 642
 643     // update sounds
 644     sound_manager->update();
 645
 646     /* Time stops in pause mode */
 647     if(game_pause || Menu::current())
 648     {
 649       continue;
 650     }
 651
 652     /* Handle music: */
 653     if (currentsector->player->invincible_timer.started() &&
 654             currentsector->player->invincible_timer.get_timeleft()
 655             > TUX_INVINCIBLE_TIME_WARNING && !end_sequence)
 656     {
 657       currentsector->play_music(HERRING_MUSIC);
 658     }
 659     /* or just normal music? */
 660     else if(currentsector->get_music_type() != LEVEL_MUSIC && !end_sequence)
 661     {
 662       currentsector->play_music(LEVEL_MUSIC);
 663     }
 664
 665     /* Calculate frames per second */
 666     if(config->show_fps)
 667     {
 668       ++fps_cnt;
 669
 670       if(SDL_GetTicks() - fps_ticks >= 500)
 671       {
 672         fps_fps = (float) fps_cnt / .5;
 673         fps_cnt = 0;
 674         fps_ticks = SDL_GetTicks();
 675       }
 676     }
 677   }
 678
 679   // just in case
 680   currentsector = 0;
 681   main_controller->reset();
 682   return exit_status;
 683 }
 684 #endif
 685
 686 void
 687 GameSession::finish(bool win)
 688 {
 689   if(win) {
 690     if(WorldMap::current())
 691       WorldMap::current()->finished_level(levelfile);
 692   }
 693
 694   main_loop->exit_screen();
 695 }
 696
 697 void
 698 GameSession::respawn(const std::string& sector, const std::string& spawnpoint)
 699 {
 700   newsector = sector;
 701   newspawnpoint = spawnpoint;
 702 }
 703
 704 void
 705 GameSession::set_reset_point(const std::string& sector, const Vector& pos)
 706 {
 707   reset_sector = sector;
 708   reset_pos = pos;
 709 }
 710
 711 std::string
 712 GameSession::get_working_directory()
 713 {
 714   return FileSystem::dirname(levelfile);
 715 }
 716
 717 void
 718 GameSession::display_info_box(const std::string& text)
 719 {
 720   InfoBox* box = new InfoBox(text);
 721
 722   bool running = true;
 723   DrawingContext context;
 724
 725   while(running)  {
 726
 727     main_controller->update();
 728     SDL_Event event;
 729     while (SDL_PollEvent(&event)) {
 730       main_controller->process_event(event);
 731       if(event.type == SDL_QUIT)
 732         throw graceful_shutdown();
 733     }
 734
 735     if(main_controller->pressed(Controller::JUMP)
 736         || main_controller->pressed(Controller::ACTION)
 737         || main_controller->pressed(Controller::PAUSE_MENU)
 738         || main_controller->pressed(Controller::MENU_SELECT))
 739       running = false;
 740     else if(main_controller->pressed(Controller::DOWN))
 741       box->scrolldown();
 742     else if(main_controller->pressed(Controller::UP))
 743       box->scrollup();
 744     box->draw(context);
 745     draw(context);
 746     context.do_drawing();
 747     sound_manager->update();
 748   }
 749
 750   delete box;
 751 }
 752
 753 void
 754 GameSession::start_sequence(const std::string& sequencename)
 755 {
 756   if(sequencename == "endsequence" || sequencename == "fireworks") {
 757     if(end_sequence)
 758       return;
 759
 760     end_sequence = ENDSEQUENCE_RUNNING;
 761     endsequence_timer.start(7.3);
 762     last_x_pos = -1;
 763     sound_manager->play_music("music/leveldone.ogg", false);
 764     currentsector->player->invincible_timer.start(7.3);
 765
 766     // Stop all clocks.
 767     for(std::vector<GameObject*>::iterator i = currentsector->gameobjects.begin();
 768         i != currentsector->gameobjects.end(); ++i)
 769     {
 770       GameObject* obj = *i;
 771
 772       LevelTime* lt = dynamic_cast<LevelTime*> (obj);
 773       if(lt)
 774         lt->stop();
 775     }
 776
 777     if(sequencename == "fireworks") {
 778       currentsector->add_object(new Fireworks());
 779     }
 780   } else if(sequencename == "stoptux") {
 781     if(!end_sequence) {
 782       msg_warning("Final target reached without "
 783         << "an active end sequence");
 784       this->start_sequence("endsequence");
 785     }
 786     end_sequence =  ENDSEQUENCE_WAITING;
 787   } else {
 788     msg_warning("Unknown sequence '" << sequencename << "'");
 789   }
 790 }
 791
 792 /* (Status): */
 793 void
 794 GameSession::drawstatus(DrawingContext& context)
 795 {
 796   player_status->draw(context);
 797
 798   if(config->show_fps) {
 799     char str[60];
 800     snprintf(str, sizeof(str), "%3.1f", fps_fps);
 801     const char* fpstext = "FPS";
 802     context.draw_text(white_text, fpstext, Vector(SCREEN_WIDTH - white_text->get_text_width(fpstext) - gold_text->get_text_width(" 99999") - BORDER_X, BORDER_Y + 20), LEFT_ALLIGN, LAYER_FOREGROUND1);
 803     context.draw_text(gold_text, str, Vector(SCREEN_WIDTH - BORDER_X, BORDER_Y + 20), RIGHT_ALLIGN, LAYER_FOREGROUND1);
 804   }
 805 }
 806